Draft yoke



March 30 1926.

1,578,499 G. W. DITMORE ET AL DRAFT YOKE Filed Sept. 6, 1924 '2 Sheets-Sheet l March 30 1926.

vG. W. D ITMORE ET AL DRAFT YOKE Filed-Sept. 6, 1924 -H Emil 2 Sheets-Sheet 2 Patent ed Mal. 30, 1926. I

UNITED *STATES "PATE T; OFFICEL}.

GEORGE W. DITMORE, or ALBANY, N W YORKQIA D Gr m w; SHERMAN; on

" A ILTON, ONTARIO, CANADA.

Application filed September 6, 1924 seen no. 736,210, g

Y T all whom it may concern:

Be it known that we, GEORGE WV. 'D IT MORE and CLIFTON WI SHERMAN, citizens of the United States, residing at Albany, in

the county of Albany and; State of New York, and Hamilton, county'of Went-worth, and Province of Ontario, Canada, respectively, have invented a new and useful Im provement in Draft Yokes, of which the; fol owing is a specification.

This invention relates to a railway cars ofthe type having longitudipocket which receives the rear set of elements ofthe buffing mechanism.

. The object of this-invention is to a draft yoke of this character in whichthe Qfrolnt parts of the longitudinal bars are se curely connected and form 'a strongand durable pocket in which'the enlarged butt of the draw bar shank may be i'nounted so [as to be capable of being easily and readily, mounted and dismounted in adirection transversely of the draft yoke; also toconstruct the longitudinal bars relatively t-o'the front stop so that the bufling strains extent endwise to these bars and thereby. relieve from shearing strains the pins which connect thedraw bar shank with the draft bufiing elements.

ofthe draw bar are transmitted to a large yoke; and also to provide ribs on the longitudinal bars from the front ends thereof to the central stop for the purpose of strengthening the yoke and enabling the same to more effectively transmit buffing strains from the front parts of the longitudinal bars to the central stop and the rear In the accompanying drawings Figure 1 is a side elevation of a draft yoke embodying our improvements;

Figure 2 is a top plan view .thereof. Figure 3 is'a longitudinal section taken on line 33, Figure 1;

Figure f is a bottom plan View of the draft yoke. I l

Figure 5 is a side elevation viewed from the side opposite to Figure 1. V

Figure 6 is a vertical section taken on line 66, Figure 5. c 1

Similar characters ofreference indicate like parts throughout the several views.

, m'echanism; draft yoke forprovide The numerals'lll and represent the upper and lower [longitudinal bars of the draft [yoke which are associated with other parts to form a front-pocket for thereception of theshankkof the draw bar, anintermediate pocket' which receives the front section or set of elements of the. 'buffing mechanisnn;

and a rear pocket which receives therear section or, set of elements of thebufiing The front parts or wall of the front pocket,- and". an'upof the longitudinal bars form the top and I bottom'of' the front H r pocket, At the front ends of these bars 'jis a, pair of vertical lugs" 12,13 which project" toward each other and'form th'ejfront'side right front stop, '14 connects the bars at a. r distance; rearwardly. from the lugs and forms the rear wall or side of this pocket;

,In this front pocket is removablymounted the shank of the coupler draw bar which has a reduced'neck 15 arranged between the lugs 12, 18 and a vertically enlarged butt 16 at the rear end of. this, neck which is arranged in'the front pocket andbears with .7

its-rear side against the front stop 14 and p provided with forwardly facingshoulders 17, 18 which engagewith the rear or inner sides of-the upper and lower lugs 12,

The butt of the draw bar shank is se-f cured in this pocket by one or moreheaded pins 19, preferably two, passing vertically through corresponding openings in the butt and thefrontpartso'f the, upper and lowerbars ,and bearing with their heads" against the top of the .upper bar and held against displacement by cotters or keys 20" passing through the pins below the-bundersideiof the lower longitudinal bar. g On one lateral side of the draft yoke the front pocket is entirely open so asto permit the free introduction of the coupler but-t into this pocket as well as the removal of the same therefrom. n The opposite lateral side of the front pocket ispart-ly obstructed or closed by; two" thick inner longitudinal ribs 40 arranged on the inner sides of the:

bars 10, 111 at one pair of;correspondinglon gitudinal edges thereof and, connecting the corresponding ends of the lugs 12, 18 with the respective vertical edge of the front stop 14. A .thin upright longitudinal web 21 connects at its rear edge with the adjacent edge of the front stop 141- and at its upper and lower edges with the inner lonand front stop and enables the same to take gitudinal ribs 40,abut the same is separated and Wholly disconnected from the lugs" By; this means-the inner ribs 10 serve-as ainaln SlIfi GIIQI which reinforces said lugs the heavy strains to whichthey are subisfformedfbetiveen the front; parts ofth'e' jected'; and a strong and durable connectionv bars and the front lugs thereof which effectually prevents the same from spreading underthe strains to Whichithesame are sub- ]ectecl-.'\vlnle in. use p and at" the same tnne leaving enough clear space immediately (in front of the Web through which-a tool may i be introduced into the front pocket for drive; 'ing' the butt of the draw bar out oft-he same,

in case'it'h'as'a'tendeney testicle. a V The intermediate pocket of the 'draftyoke" is formed between the front stop and an upright:centra'lf-stop 22 which connects the to engage Witli forwardly facing stops or shoulders on the carsills, and front springv centita-l parts of, the bars, and the rear poekv etis formed-between the; central stop'iand an lupright' rear stop 23 connecting the rear endsiofthe bars,

In the intermediate pocket is arranged the ifrontsection'or set of elements of the buffing.

or shfoclc absorbing mechanism consisting, for example, of f a front follower 2.4 engaging with the rearside of the front stop and adapted to engage With 'rearwardlyv facing stops or shoulders onitlie car sills, afront" intermediate follower 25 engag ng wlththe front side of the. central stop and adapted 26" interposed between "said followers. The rear pocket contains the set of elements of thejre'ar section of the shock absorbing or 140 bufiing mechanism Which may consist of'a rear follower27; engag1ng the rear stop 23 and adapted to engage forwardly facing stops orshoul ders'on the car sills ra rear intermediate follower 28 engaging with the rear side of'the'central stopr22 and adapted to engage with rearwardl'y facing stops or shoulderson the ear sills; and a rear spring forming; forwardlyfacing shoulders 30' on the inner sides of said bars" which are "Ver- .tica lly in linewith the 'front side "of the f front-stop. In consequence of this 0011-.

struction the upper and lower ends of the v any heaiqf or expensive,

'tudinal *edges thereof an enlargledibutt, which is of; substantially the same height-as the front pocket engages iv-itlrthe-front side ofthefront stop and also: the inner shouldersgfiO; onathefbars; therebyproducing an en'dfivise thrust against tlltlij part 'of the metal of the longitudinal ens in rearofthefrontfstop and relieving the pins 19 from the" load and shearing strains i'ni'posedfnpon them. l

On the top and bottom sides-of tl-ie upper and lower bars the ,same- -are provided ad gacent to the V long tudinal edges thereof with loi'igitudjinal' ribs or fianges 31 which P extend? from the; front en'd 's' of these' bars abled to.

to'ithe centralstop of thevsam e', as shown in Figures" 1,2 Q45 andj5 this neans these' 7 bars: are stifl ened or 'strengtl'ienedf and" en V 'ansmit the slioclt daring a buffing fj action from the draiv'bar tostlie rearf se'ction- 0f the shock'absorbing;mechanismso that the load is divided} between the same" and the front sectionjofthe absorbing me'chaj nis n W thout h abil ty*ofjbreaking or; bend t ingithe draftiyokeiori making the s'amefunf 7e claim as our invention:

"Aklraft'yoke comprising upper and lower longitudinal bars,gvertical'- lugs arranged at the front ends o'fisaid 'barsand" projecting toward each'other, an upright stop connect- 13:

ing the longitudinal bars at a distance-rear- 4 Wardly from'said lugs thickinne'r longi-' said bars-atone pair of corresponding longiends of said" lugs "with the corresponding vertical edge of 'said St p, and a thin Webconnecting the ftudinalribs arrangedon the inner sidesf'of connecting said-inner longitudinabribs with] said stopand spaced from saidfllugs the space at the opposite longitudinal-edges{of the, bars and stop being entirely open;

thereby forming a p ocket' between the front parts; of saidbars, lugs, stop, inner ribs and 1 Web into which the; enlarged fbutt'of a draw bar shank may" be introduced through said f entirely open side thereof and. engagediwlth its front and rear shoulders agaihstthe opposing sides of said lugs and stop saidI inner llbS- reinforcing. said lugs and stop saidweb' holdlng said bars agalnst spreading and the spacein; front of said Web" permitting a tool to be engaged with "said butt for driving the same laterally out of said pocket. r

1n. testimony whereof We aflix. our' signatures' H enonen W; DITMORE. I CLIFTON W. SHERMAN. V 

